Smoke

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Air quality

Back 1

Refers to the condition of the airwithin the surrounding.It is a measure of how clean orPolluted the air is.

Front 2

Good Air Quality

Back 2

pertains to the degreewhich air is clean, clear and free frompollution.

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Bad air quality

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can affect or harmhuman health and/or the environment.

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Airborne particles

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referred to as Particulate Matter or " PM “- amixture of solids and liquid droplets floating inthe air.-others form in complicated chemical reactionsin the atmosphere-Includes Dust, Dirt, Soot, Smoke and LiquidDroplets .etc.

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Natural Sources

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which includesbushfire, dust storm, pollens, andsea spray.

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Related Human Activity

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- includemotor vehicle emissions, industrialprocesses (e.g electricity generator,incinerators and stone crushing),unpaved roads and wood heaters.

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Aerodynamic diameter

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This particles can be classified on the basis oftheir size, referred to as their

Front 8

Coarse particles

Back 8

between 10 and 2.5micrometer

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Fine particles

Back 9

smaller than 2.5micrometer

Front 10

Ultrafine diameter

Back 10

smaller than 0.1micrometer

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smoke

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cloudy gray orblack mixture ofair and very smallpieces of carbonproduced bysomething that isburning.

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Smoko Emission

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-Is a collection of airborne solidand liquid particles and gasesemitted when a materialundergoes combustion orpyrolysis, together with thequantity of air that is entrained ormixed into mass.

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Opacimeter

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, detectand measure the amount oflight blocked in smokeemitted by diesel enginesfrom cars, trucks, ships,buses, motorcycles,locomotives and largestacks from industrialoperations.